Disassembly And Reassembly Of L-Axis Speed Reducer - YASKAWA MOTOMAN-MH5S Maintenance Manual

176183-1CD
MH5S (II) /MH5F
6.2
6 Disassembly and Reassembly of Speed Reducer

6.2 Disassembly and Reassembly of L-Axis Speed Reducer

Disassembly and Reassembly of L-Axis Speed Reducer
• Refer to Fig. 6-2 "Disassembly & Reassembly of the L-Axis Speed
Reducer".
Disassembly

1. Turn OFF the DX100/DX200/FS100 power supply.
2. Connect the backup batteries with the L-, U-, R-, B- and T-axes
motors. After disconnect all the cables connected to the internal wiring
harness, pull out the internal wiring harness to the S-head side. (Refer
to Chapter 10 "Cable Wiring".)
3. Unscrew the hexagon socket button head screws
cover
13
4. Remove the timing belt
Reassembly of L- and U-Axis Timing Belts".)
Because the L-arm cannot keep its posture without the timing belt
be sure to support the L-arm before removing the timing belt
5. Unscrew the GT-SA bolts
generator , the bearings
3
6. Unscrew the hexagon socket head cap screws
wave generator
7. Unscrew the GT-SA bolts
the removal tap.
8. Unscrew the GT-SA bolts
removal tap. Because the L-arm and the S-head are detached without
the housing , be sure to support the L-arm before removing the
11
housing .
11
9. Remove the bearing
cap screws . Then remove the flex spline
5
10. Remove the bearing
11. Remove old sealing from each parts.
 Reassembly
1. Mount the flex spline
Grease SK-1A to the inside wall of the flex spline
5mm or so.
2. Attach the conical spring washers to the hexagon socket head cap
screws and apply ThreeBond 1206C to the thread parts. Then
5
tighten them with the tightening torque shown in Table 6-2 "L-Axis
Speed Reducer Parts Checklist".
3. Press fit the bearings
to the outside wall of the bearings
matching face with the S-head. Smooth the surplus sealing or
adhesive with a spatula. However, be careful not to spread the sealing
inside the bearings
the bearings
10 17
4. Press fit the oil seal
remove the sealing adhering to the S-head so that the sealing does
not adhere to the oil seal when press fit into the bearing.)
5. Put the housing
the S-head with the L-arm.
. (Refer to section 8.1 "Disassembly and
15
. Then remove the housing
6
and the pulley
16
and remove the pulley
3
. Then remove the circular spline
4
. Then remove the housing
12
, the oil seal and the hexagon socket head
17 18
and the oil seal
10 19
on the S-head. At this time, apply Harmonic
2
into the S-head. Apply ThreeBond 1206C
10 17
and LOCTITE 638 to the
10 17
. (When replace the speed reducer, replace
10 17
too.)
into the S-head. (Before the press fit,
18 19
through the L-arm and the bearing
11
HW1483638
6-4
and remove the
14
.
15
, the wave
9
with the removal tap.
8
from the removed
7
and the housing .
8 9
with
1
with the
11
.
2
.
in thickness of
2
and connect
10
,
15
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